Improvement in machines for seaming cylindrical tin boxes



UNITEE STATEs PATENT GEEIOE.

. JONAH E. oOLE, OE NEW YORK, N. Y., AssreNoE To HrMsELE, THOMAs e.

BEOWNEAND oHAELEs HEEEING.

IMPROVEMENT IN NlACHlNES FOR SEAMING CVLINDRICAL TIN BOXES.

Specification forming part of Letters Patent No. 116,931, dated July 11, 1871.

To all whom fit may concern:

Be it known that I, J ONAH R. COLE, of the city and State of New York, have invented an Improvement in Tinmanfs Crimping-Machines5 and the following is declared to be a full, clear,

- and exact description thereof.

4Tinmans machines have heretofore been made with two shafts that are geared togetherl and project from the frame a sufficient distance for carrying the grooving-rollers that are employed in rolling the cylindrical barrel and the flange of the head together, so as to lock the parts into each other.

My invention is made with especial reference to rolling together the cylindrical barrel and a closed head or bottom at one end and an open iiat ring at the other end of such cylinder, and these two operations are performed simultaneously in order to effect two obj ects-the flrst is to save time and expense, and the second is to perform the work in a better and more reliable manner.

Heretofore, in rolling on the open fiat ring, it was very liable to slip olf, because the workman cannot keep both the ring and cylinder in their proper relative positions without considerable dexterity, and the open ring had first to be applied to the cylinder and afterward the closed In my machine two pairs of grooving-wheels or rolls are employed, one pair being at the ends of the horizontal shafts, and the other pair upon such shafts, at the distance required by the length ofthe sheet-metal cylinder, and adjustable thereon, and a gauge is employed for the open iiat ring to set against. ly this construction both heads or ends are crimped upon the sheet-metal cylinder simultaneously by the two pairs of rollers bending' up the sheet metaland interlocking the same, and the operator does not have any difficulty in keeping the parts in con tact while the grooving-rollers are interlocking' the parts.

In the drawing, Figure 1 is a vertical section of the said machine, 'and Fig. 2 is a partial sectional plan, showing the lower rollers and the fence or gauge.

The bed a, lower shaft b, crank c, gear-wheel d to the wheel f upon the shaft g in the upper frame h, hinged at i, so as to be lifted, are substantially the same as in any ordinary tinmans machine, and I remark that the shaft g and frame h may be lifted to separate the groovingrollers to allow for inserting or withdrawing the articles in any usual manner. It is preferable to employ a treadle to draw the parts together, and a spring to separate them. rIhe rollers ll are attached at the ends of the shafts b and g, as heretofore; but in addition I make use of the second pair of rollers or wheels fm m upon the shafts b g, attached adjustably byset-screws 2 2, so as to be positioned to accomn'lodate the length of the cylinder a. o is the iiat bottom or end of the can or pail, and fr is the open ring applied at the other end of the cylinder a'of the can or pail. These parts are to be prepared with dies in the usual manner, so as to set together. The gauge or fence s is sustained by the rod or rods t and clamping-screw, so that it is held at the proper distance fromthe rollers m m to admit the open ring-head r.

It will now be apparent that, when the heads o and r are slipped upon the cylinder a and the pail or can introduced into the machine in the position represented, pressure upon the end or bottom o will keep the parts together While the sheet metal is crimped and interlocked bythe action of the rollers .l Zand m m, that act simultaneously' in connectingboth ends ofthe pail or can in a perfect manner with lgreat rapidity.

I claim as my invention- The rollers m m, adjustable upon the shafts b and g of the tinmans crimping-machine, in coml bination with the rollers Z'l at the ends of said shafts, substantially as and for the purposes set forth.

Signed by me this 23d day of May, A. D. 1871.. l/Vitnesses: JONAH It. COLE.

GHAs. H. SMITH, GEO. T. PINOKNEY. 

